It’s not that equality kills libido, it’s that boredom does – for women. If Ms. Gottlieb had bothered to look at the reams of research about women’s sexuality from the last few years, perhaps she would have been introduced to a few theories that could have expanded her worldview. Daniel Bergner’s exploration of women’s sexuality in “What Do Women Want? Adventures in the Science of Female Desire” – a rather slim volume – is rife with information about women’s libido. I think it would have taught her a lot. Namely, that women are likelier to get bored with their partners than men, that we need novelty, that after a few years, it’s hard for us to get it up with the same guy over and over again. That monogamy isn’t all it’s cracked up to be, and forcing ourselves into its strictures can thwart our desires.